嵌入式共固化穿孔纤维增强阻尼复合材料面内力学性能  

In-plane mechanical properties of embedded co-cured perforated fiber reinforced damping composites

作　　者：孙瑞骏 梁森 罗皓 刘昭阳 胡子健 SUN Ruijun;LIANG Sen;LUO Hao;LIU Zhaoyang;HU Zijian(School of Mechanical and Automotive Engineering,Qingdao University of Technology,Qingdao 266520,China)

机构地区：[1]青岛理工大学机械与汽车工程学院,青岛266520

出　　处：《复合材料科学与工程》2024年第1期22-29,共8页Composites Science and Engineering

基　　金：国家自然科学基金资助项目(52075280);山东省自然科学基金资助项目(ZR2019MEE088)。

摘　　要：本文提出一种嵌入式共固化穿孔纤维增强阻尼复合材料板(Embedded Co-curing Perforated Fiber-reinforced Damping Composite Panel, ECPFDCP)结构。该结构在减小刚度损失、提高承载能力的同时,还提高了阻尼性能。建立了有限元模型和穿孔纤维增强阻尼薄膜的面内等效参数的理论模型,运用数值模拟分析方法验证了文中理论模型和方法的有效性。用验证的理论模型和方法分别研究了设计参数对ECPFDCP穿孔纤维增强阻尼薄膜面内力学性能的影响。结果表明:增大穿孔阻尼层厚度和阻尼层穿孔孔径,减小阻尼层穿孔孔距,均有利于增大剪切模量。文中的模型和方法对嵌入式共固化非连续阻尼复合材料结构的动力学性能理论研究具有重要的指导意义,为结构的设计与制造提供了参考。An embedded co-curing perforated fiber-reinforced damping composite panel(ECPFDCP)structure was proposed.The structure does not only reduce the stiffness loss and improve the bearing capacity,but also improves the damping performance.The finite element model and the theoretical model of the in-plane equivalent parameters of the perforated fiber reinforced damping film are established,and the effectiveness of the theoretical model and method are verified by numerical simulation.The effects of design parameters on the in-plane mechanical properties of perforated fiber reinforced damping films of ECPFDCP were investigated by verified theoretical models and methods.The results show that increasing the thickness of the damping layer and the aperture of the damping layer and decreasing the distance of the damping layer are beneficial to increase the shear modulus.The model and method presented in this paper have important guiding significance for the theoretical study of dynamic properties of embedded co-cured discontinuous damping composite structures and provide a reference for the design and manufacture of structures.

关 键 词：复合材料 理论模型 数值模拟 面内力学性能 穿孔阻尼 

分 类 号：TB332[一般工业技术—材料科学与工程]